package utis;

public class doubleNode <T>{
        public T value;
        public doubleNode<T> preNode;
        public doubleNode<T> next;

        public doubleNode(T x ){
            this.value = x;
        }
        public doubleNode( ){
            this.value = null;
        }
    
        @Override
        public String toString() {
            return value + " ";
        }
    
        
}
